CAJ | 학술논문

太空中的微重力环境对基础科学研究和新技术开发具有重要意义，为了满足未来我国空间站开展微重力科学实验的需求，需要对空间站上的微重力水平进行分析和评估，指导高微重力要求实验载荷的布局和微重力实验期间的飞行任务规划。空间站上的微重力水平用加速度值度量，通常可以分为准稳态加速度、瞬态加速度和振动加速度。针对此问题调研总结了国际空间站的微重力研究情况，并以400 km 轨道高度上100吨级“T”字型积木式空间站作为算例，估算其准稳态加速度大小及分布，并初步分析瞬态加速度水平的量级。结果表明，空间站准稳态加速度水平在1μgn量级，主要贡献来自重力梯度效应；瞬态加速度可达103μgn量级。文章对将来我国空间站微重力应用支持的设计工作有一定的借鉴意义。
태공중적미중력배경대기출과학연구화신기술개발구유중요의의，위료만족미래아국공간참개전미중력과학실험적수구，수요대공간참상적미중력수평진행분석화평고，지도고미중력요구실험재하적포국화미중력실험기간적비행임무규화。공간참상적미중력수평용가속도치도량，통상가이분위준은태가속도、순태가속도화진동가속도。침대차문제조연총결료국제공간참적미중력연구정황，병이400 km 궤도고도상100둔급“T”자형적목식공간참작위산례，고산기준은태가속도대소급분포，병초보분석순태가속도수평적량급。결과표명，공간참준은태가속도수평재1μgn량급，주요공헌래자중력제도효응；순태가속도가체103μgn량급。문장대장래아국공간참미중력응용지지적설계공작유일정적차감의의。
The space microgravity environment is very important for the basic science research and new technology development .The analysis and evaluation of microgravity magnitude on space station is helpful for designing the layout of payloads and flight model during the period of conducting micro -gravity experiments .The microgravity magnitude is characterized by acceleration value , usually clas-sified as quasi-steady acceleration , transient acceleration and vibratory acceleration .The research progress of microgravity utilization in the International Space Station was summarized .Then, given a three-module space station orbiting on a height of 400 km with configuration of alphabet ‘T’ and mass of 100 ton, the magnitudes of quasi-steady and transient acceleration magnitudes were esti-mated and analyzed .The results showed that the magnitude of quasi-steady acceleration is on the level of 1μgn, attributing mostly from the gravity gradient effect , while the transient acceleration can reach the level of 103μgn.It is of reference value for designing the microgravity applications on space station of China in the future .